Joost Yervante's posts

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shuttle xs36v console issues

bugfix 2.0.2 release of the madparts functional electronics footprint editor is available. http://madparts.org/footprint.html#download

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playing with #mbed on +Silicon Labs Happy Gecko board; got local complication working with gcc/make/Jlink in only a few minutes, sweet :)

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3D printed bottle-filler to spigot adapter.

openSCAD code:

kraan_large_dia = 13.2;

klr = kraan_large_dia/2;

filler_inner_dia = 11.5;

fir = filler_inner_dia/2;

module cap() {

difference() {

sphere(r=klr+1, $fn=50);

translate(v=[0,0,-4]) sphere(r=klr+1, $fn=50);

}

}

difference() {

cylinder(h=25, r=klr+2, $fn=50);

cylinder(h=55, r=klr, $fn=50, center=true);

}

translate(v=[0,0,25]) difference() {

union() {

cylinder(h=10, r=fir, $fn=50);

translate(v=[0,0,-3]) cap();

}

cylinder(h=25, r=fir-2, $fn=50, center=true);

}

openSCAD code:

kraan_large_dia = 13.2;

klr = kraan_large_dia/2;

filler_inner_dia = 11.5;

fir = filler_inner_dia/2;

module cap() {

difference() {

sphere(r=klr+1, $fn=50);

translate(v=[0,0,-4]) sphere(r=klr+1, $fn=50);

}

}

difference() {

cylinder(h=25, r=klr+2, $fn=50);

cylinder(h=55, r=klr, $fn=50, center=true);

}

translate(v=[0,0,25]) difference() {

union() {

cylinder(h=10, r=fir, $fn=50);

translate(v=[0,0,-3]) cap();

}

cylinder(h=25, r=fir-2, $fn=50, center=true);

}

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Spelt sourdough made with the remains of this mornings brewing sour mash as starter. Sour mash was done based on wild sour fermentation of flaked barley.

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8l of "Without-I" light wheat-beer with coriander, orange and chamomile freshly fermenting :)

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**Mathematicians make a major discovery about prime numbers**

**#Math**

http://www.adafruit.com/blog/2014/12/29/mathematicians-make-a-major-discovery-about-prime-numbers-math/

Via Wired:

*In May 2013, the mathematician Yitang Zhang launched what has proven to be a banner year and a half for the study of prime numbers, those numbers that aren’t divisible by any smaller number except 1. Zhang, of the University of New Hampshire, showed for the first time that even though primes get increasingly rare as you go further out along the number line, you will never stop finding pairs of primes that are a bounded distance apart — within 70 million, he proved.*

**Read More**

http://www.adafruit.com/blog/2014/12/29/mathematicians-make-a-major-discovery-about-prime-numbers-math/

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openMSX YM2413 pre-sampling signal shaping sub-board in place! #openMSX

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